Re: [RFC][PATCH 1/10] PM: Add flag for devices capable of generating run-time wake-up events

Alan Stern
2009-11-16T19:38:58Z

On Mon, 16 Nov 2009, Rafael J. Wysocki wrote:

> From: Rafael J. Wysocki <rjw@sisk.pl>
>
> Apparently, there are devices that can wake up the system from sleep
> states and yet are incapable of generating wake-up events at run
> time. Thus, introduce a flag indicating if given device is capable
> of generating run-time wake-up events.

This raises the question: Who is responsible for setting the new
flag? The code that registers the device?

What if the kernel can't tell whether or not the device can generate
runtime wake-up events?

What if the user wants to override the kernel's setting? Should there
be a sysfs attribute controlling the flag?

Alan Stern